This plot is not dissimilar to the PNA

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Years: Value used in composites
1989: 2.688
1993: 1.769
2020: 2.083

Based on Dec to Feb values of /data/correlation/ao.data
that are greater than or equal to 1.5


Dataset time range: 1948 to 2024

Dataset Information: NCEP/NCAR Reanalysis

Date submitted: 5/8/2024 at 03:44